INTRODUCTION Thank you for purchasing an Eagle sonar. Your Magna or Magna III Plus is a high quality sonar designed for both professional and novice fisher- men. These units have an automatic feature that finds and displays the bottom, fish, structure, and more! All you have to do is press the on key.

INSTALLATION - Bracket You can install the Magna III on the top of a dash or from an overhead with the supplied bracket. It can also be installed in the dash with an optional IDA-3 mounting kit. If you use the supplied bracket, you may be interested in the optional GBSA-1 swivel bracket kit.

POWER CONNECTIONS The Magna III works from a 12 volt DC system only. For the best results, run the power cable directly to the boat’s battery. Keep the power cable away from other boat wiring, especially the engine’s wires. This will give the best isolation from electrical noise.

SPEED/TEMPERATURE SENSOR INSTALLATION - (Magna III Plus Only) Mount the speed/temp sensor on the boat’s transom in a location where the flow of water is the smoothest. There should be a minimum of turbulence and air bubbles in the chosen location. The port (left) side of the transom is preferred, however, the starboard (right) side can be used if necessary.

After installing the batteries, close the case and plug the power cable on the battery case into the Magna III Portable. Plug the adapter cable into the back of the sonar unit. Turn the sonar unit on. If it doesn't work, make certain the battery terminals are making good contact against the battery contacts.

In cold weather the efficiency of dry cell batteries drops with the tempera- ture. We find it a good idea to have the Magna III Portable good and warm along with the batteries before we leave home. If the batteries do lose a charge, you can sometimes restore them by placing them in a warm room or car interior.

Magna III. Your portable sonar is now ready for use. HULL PERMANENT MOUNT TRANSDUCER INSTALLATION The HS-WSBK supplied with your Magna III is a transom mount trans- ducer. It can be installed on any outboard or stern-drive (inboard\outboard) powered boat. It can also be permanently installed inside the boat to "shoot-through"...

DISPLAY - General The lights flash for about ten seconds when the Magna III is turned on. Three menus appear, one after the other. The menus are the lights (LAMP), feet-meter selection (FEET/METER), and contrast adjustment (DARK/LIGHT).

OPERATION MENUS The Magna III and Magna III Plus use menus to guide you through the unit’s functions and features. The menu key accesses these features, allowing you to customize the unit to your particular needs and water conditions. All you have to do to leave one menu and enter another is press the menu key repeatedly.

5, 10, 20, 30, 50, 100, and 150 meters. Zoom - Manual Operation To operate the zoom feature when the Magna III is in the manual mode, first press the menu key. Then press the down arrow key in the RANGE/ZOOM menu to place the Magna in the zoom mode.

The Magna III adjusts the sensitivity level to keep a solid bottom signal on the screen. It adds a little extra when it’s in the automatic mode. This gives it the capability to show fish and other detail.

If you reach the maximum or minimum level, a tone sounds alerting you to the limits. The level chosen by the Magna III when it’s first turned on is usually adequate for most conditions. Experiment with your unit to find the Grayline setting that’s best.

The Fish ID feature can’t be used when the Magna III is in the manual mode. If you turn the automatic feature off, the Fish ID feature will automatically be turned off, also. FISH TRACK™ The Magna III automatically displays the depth of a target when the Fish ID feature places a fish symbol on the screen as shown below.

DISPLAY MODE The Magna III has three different screen modes. The Magna III Plus has six. To change modes, press the MENU key until the “DISP MODE” (Display Mode) menu appears. Then press the up or down arrow keys until the desired mode number appears.

ALARMS FISH ALARM The Fish Alarm sounds a tone when a fish symbol appears on the screen. To use the fish alarm, press the menu key until the “FISH ALARM” menu appears on the screen. Now press the up arrow key to turn the alarm on. Repeat the above steps to turn the fish alarm off.

ALARM” menu to adjust the deep alarm. When the bottom signal goes deeper than the setting, an alarm tone sounds. LIGHTS The Magna III and Magna III Plus’ display is backlighted for night use. To turn the back- lights on or off, press the menu key repeat- edly until the LAMP menu appears.

ON/CLEAR key to clear the screen. ASP (Advanced Signal Processing) ASP is a program embedded in the Magna III’s computer that is specifically designed to eliminate noise. It continually monitors the signals from the receiver, determines which echoes are noise and rejects them.

The angle between the outside edges of the cone is the cone angle. Eagle offers a choice of transducers with either an 8 or 20 degree cone angle. The transducer supplied with the Magna III has a 20 degree cone angle.

The most efficient way to become acquainted with a body of water is to survey it with your Magna III Start with a map of the lake, if possible, and indicate the promising spots in relation to landmarks on shore. Keep a few marker buoys in the boat, ready to toss overboard.

The easiest way to do this on the Magna III is with the Zoom feature. This feature expands the echoes, making it easier to see detail. For the best results, turn the sensitivity up as high as possible without getting too much noise on the screen.

Many times bait fish will be above the thermocline while larger game fish will suspend in or just below it. The Magna III can detect this invisible layer in the water, but the sensitiv- ity will probably have to be turned up to see it.

IMPORTANT INFORMATION! If your unit is not working, or if you need technical help, please use the following troubleshooting section before contacting the factory customer service department. It may save you the trouble of returning your unit. TROUBLESHOOTING Unit won’t turn on: 1.

3. The water may be deeper than the sonar’s ability to find the bottom. If the sonar can’t find the bottom signal while it’s in the automatic mode, the digital will flash continuously. It may change the range to limits far greater than the water you are in.

With the boat at rest in the water, the first thing you should do is turn all electrical equipment on the boat off. Make certain the engine is off, also. Turn your Magna III on, then turn off ASP (Advanced Signal Processing). There should be a steady bottom signal on the display. Now turn on each piece of electrical equipment on the boat and view the effect on the sonar’s display.

in shallow water, or when the boat is at rest. In nearly all cases, the cause of the malfunction will be the location and/or angle of the transducer. The face of the transducer must be placed in a location that has a smooth flow of water at all boat speeds.

EAGLE ELECTRONICS FULL ONE-YEAR WARRANTY “We", “our”, or “us” refers to EAGLE ELECTRONICS, a division of LEI, the manufacturer of this product. “You” or “your” refers to the first person who purchases this product as a consumer item for personal, family, or household use.

United States, use the enclosed UPS shipping label for easy, free shipping to our factory customer service department. There are six easy steps: 1.Call Eagle at the toll-free number on the front of this flyer for a Return Authorization (RA) number and instructions about what accessories to return.

This UPS shipping offer is good only in the continental United States (excludes Alaska and Hawaii). Eagle Electronics may find it necessary to change or end our shipping policies, regulations, and special offers at any time. We reserve the right to do so without notice.

How to Obtain Service (Canadian Customers Only) We back your investment in quality products with quick, expert service and genuine Eagle replacement parts. If you need service or repairs, contact the Eagle Factory Customer Service Department at the toll-free number listed below. A technician may be able to solve the problem and save you the inconvenience of returning your unit.

Your unit is covered by a full one-year warranty. (See inside for complete warranty details.) If your unit fails and the failure is not covered by the original warranty, Eagle has a flat-rate repair policy that covers your unit and accessories packed with the unit at the factory. There is a 180-day warranty on all non-warranty repairs from the factory, which is similar to the original warranty, but is for 180 days rather than one year.